But Leo found a lead on an obscure hi-fi forum, buried in a thread from 2007. A user named wrote: “The RMA 220 manual isn’t printed. It’s ‘exclusive.’ You have to prove you’re worthy. Call the old JBL service number in Northridge, ask for ‘RMA Archives,’ and say the password: ‘Peak voltage is a lie.’”
: Plug up to three dynamic microphones into the front-panel 1/4" jacks. jbl rma 220 user manual exclusive
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, you can find detailed listings at BINTANG MAKMUR AUDIO and other specialized JBL professional retailers . But Leo found a lead on an obscure
: Use standard speaker cables to connect your passive speakers to the amplifier's rear output terminals. ask for ‘RMA Archives